Potential of Entomopathogenic Nematode HbSD as a Candidate Biocontrol Agent against <i>Spodoptera frugiperda</i>
<i>Spodoptera frugiperda</i> is a highly destructive and polyphagous pest that causes severe damage to various crops, especially maize. The wide use of chemical insecticides to control <i>S. frugiperda</i> results in resistance against commonly used chemicals and resistant mu...
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MDPI AG
2022-12-01
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| Series: | Insects |
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| Online Access: | https://www.mdpi.com/2075-4450/14/1/2 |
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| author | Yuan Chen Haibo Long Tao Jin Zhengqiang Peng Yanfang Sun Tuizi Feng |
| author_facet | Yuan Chen Haibo Long Tao Jin Zhengqiang Peng Yanfang Sun Tuizi Feng |
| author_sort | Yuan Chen |
| collection | DOAJ |
| description | <i>Spodoptera frugiperda</i> is a highly destructive and polyphagous pest that causes severe damage to various crops, especially maize. The wide use of chemical insecticides to control <i>S. frugiperda</i> results in resistance against commonly used chemicals and resistant mutations will expand in populations accompanied by a spread to vulnerable areas. Consequently, more effective and friendly strategies must be explored to minimize losses caused by <i>S. frugiperda</i>. Entomopathogenic nematodes (EPN) are good candidates for the biological control of different species of insect pests, including <i>S. frugiperda</i>. In the current study, the infective capabilities of the EPN species HbSD, belonging to <i>Hetrerorhabditis bacteriophora</i>, were evaluated against <i>S. frugiperda</i> under laboratory, greenhouse and field conditions. In laboratory assays, HbSD was highly virulent against 3rd/5th instar larvae, which was related to HbSD concentration and exposure durations. In greenhouse assays, spraying aqueous HbSD also showed good performance in killing larvae on maize leaves. However, the virulence of HbSD decreased in field trials where many adverse factors affecting survival and efficacy were encountered by HbSD. Overall, our study provides an alternative EPN for the biological control of <i>S. frugiperda</i> with the potential to be developed as a sustainable option for efficient pest management. |
| first_indexed | 2024-03-09T12:14:42Z |
| format | Article |
| id | doaj.art-4fd7c06c665144888cb13e8d339af5d2 |
| institution | Directory Open Access Journal |
| issn | 2075-4450 |
| language | English |
| last_indexed | 2024-03-09T12:14:42Z |
| publishDate | 2022-12-01 |
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| spelling | doaj.art-4fd7c06c665144888cb13e8d339af5d22023-11-30T22:47:34ZengMDPI AGInsects2075-44502022-12-01141210.3390/insects14010002Potential of Entomopathogenic Nematode HbSD as a Candidate Biocontrol Agent against <i>Spodoptera frugiperda</i>Yuan Chen0Haibo Long1Tao Jin2Zhengqiang Peng3Yanfang Sun4Tuizi Feng5Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture and Rural Affairs, Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, ChinaKey Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture and Rural Affairs, Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, ChinaKey Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture and Rural Affairs, Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, ChinaKey Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture and Rural Affairs, Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, ChinaKey Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture and Rural Affairs, Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, ChinaKey Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture and Rural Affairs, Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China<i>Spodoptera frugiperda</i> is a highly destructive and polyphagous pest that causes severe damage to various crops, especially maize. The wide use of chemical insecticides to control <i>S. frugiperda</i> results in resistance against commonly used chemicals and resistant mutations will expand in populations accompanied by a spread to vulnerable areas. Consequently, more effective and friendly strategies must be explored to minimize losses caused by <i>S. frugiperda</i>. Entomopathogenic nematodes (EPN) are good candidates for the biological control of different species of insect pests, including <i>S. frugiperda</i>. In the current study, the infective capabilities of the EPN species HbSD, belonging to <i>Hetrerorhabditis bacteriophora</i>, were evaluated against <i>S. frugiperda</i> under laboratory, greenhouse and field conditions. In laboratory assays, HbSD was highly virulent against 3rd/5th instar larvae, which was related to HbSD concentration and exposure durations. In greenhouse assays, spraying aqueous HbSD also showed good performance in killing larvae on maize leaves. However, the virulence of HbSD decreased in field trials where many adverse factors affecting survival and efficacy were encountered by HbSD. Overall, our study provides an alternative EPN for the biological control of <i>S. frugiperda</i> with the potential to be developed as a sustainable option for efficient pest management.https://www.mdpi.com/2075-4450/14/1/2entomopathogenic nematode<i>Spodoptera frugiperda</i>Heterorhabditidaebiological control |
| spellingShingle | Yuan Chen Haibo Long Tao Jin Zhengqiang Peng Yanfang Sun Tuizi Feng Potential of Entomopathogenic Nematode HbSD as a Candidate Biocontrol Agent against <i>Spodoptera frugiperda</i> Insects entomopathogenic nematode <i>Spodoptera frugiperda</i> Heterorhabditidae biological control |
| title | Potential of Entomopathogenic Nematode HbSD as a Candidate Biocontrol Agent against <i>Spodoptera frugiperda</i> |
| title_full | Potential of Entomopathogenic Nematode HbSD as a Candidate Biocontrol Agent against <i>Spodoptera frugiperda</i> |
| title_fullStr | Potential of Entomopathogenic Nematode HbSD as a Candidate Biocontrol Agent against <i>Spodoptera frugiperda</i> |
| title_full_unstemmed | Potential of Entomopathogenic Nematode HbSD as a Candidate Biocontrol Agent against <i>Spodoptera frugiperda</i> |
| title_short | Potential of Entomopathogenic Nematode HbSD as a Candidate Biocontrol Agent against <i>Spodoptera frugiperda</i> |
| title_sort | potential of entomopathogenic nematode hbsd as a candidate biocontrol agent against i spodoptera frugiperda i |
| topic | entomopathogenic nematode <i>Spodoptera frugiperda</i> Heterorhabditidae biological control |
| url | https://www.mdpi.com/2075-4450/14/1/2 |
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